Drawing mechanism for spinning-machines



(No Model.)

' 3 B. L. BAILEY. DRAWING MECHANISM FOR SPINNING MACHINES No. 439,339.Patented Oct. 28, 1890:

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BENJAMIN L. BAILEY, OF DANIELSONVILLE, CONNECTICUT.

DRAWING MECHANISM FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 439,339, dated October28, 1890.

Application filed January 14, 1890. Serial No. 336,930. (No model.)

. connection with the accompanying drawings,

is a specification, like letters on the drawings representing likeparts.

This invention has for its object to provide the lower front roll of theusual set of rolls of a spinning-machine with an adjustable hearing,whereby the right position of the front rolls with relation to themiddle and back rolls may be maintained, notwithstanding wear of theparts, as will be described. In practice, in ordinary spinning anddrawing frames, the journals of the lower front roll after continued useout into their bearings, so that it fails to occupy the properestablished position with relation to the middle and back rolls, andowing to such change the twist is more or less altered as to itsuniformity. To overcome any defects due to the wearing away of thejournal of the lower front roll and the consequent descent of theperiphery of the said roll, I have provided the journal thereof with anadj ustable bearing.

Figure 1 in section and elevation represents part of the frame of aspinning or drawing frame with a set of rolls thereon, the lower frontroll being shown as mounted in an adjustable bearing. Fig. 2 is a top orplan view of one of the roller-stands with the rolls removed. Fig. 3shows top, rear, and bottom views of one of the bearings for the lowerfront roll. Fig. 4 is a broken-out plan view on a small scale, showingone form of gearing for connectingthe various rolls in the set; and Fig.5 is a diagram of the same form of gearing to rotate the rolls.

The frame A, the roller-stand B, the front rolls a a, the middlerolls 1) b, the back rolls 0 c, the saddles cl (1, the bearing f for thejournals of the middle and back rolls, the gear 6, fast on the shaft ofthe lower front roll a, and gearing into the intermediate e, mounted ona stud e the pinion 6 fast to the said intermediate land engaging thegear 6 fast on the lower back roll 0, the gear e (shown by dotted linesin Fig. 5) at the opposite end of the lower front roll, the intermediategear 6 engaged by it, the said gear being mounted on a stud 6*, (shownby dotted lines, Fig. 5,) the pinion e fast to the gear e and engagingthe gear a fast on one end of the lower middle roll b, are, or may be,all as is usual in spinning-frames.

Instead of the gearing shown for connecting together and rotating thevarious rolls with the proper difierence in speed, I may use any otherwell-known form of gearing.

The proper differencein speed having been established and the surfacesof the top rolls having been brought into proper position with relationto the middle and back rolls, it is desirable and necessary for the bestresult that the said lower front roll maintain its established relativeposition so long as theycontinue to run; but this position varies as thejournals of the lower front roll wear away, for then the surface of theroll by descending occupies a lower position. To compensate for thischange of position of the lower front roll, I have provided the journalsof the lower front roll with adjustable bearings, one of said bearingsbeing shown in the drawings, there being a like bearing for eachjournal. Each bearing g is provided with an adjusting device h, shown asa screw (see Fig. 1) passed up through a part of the stand B and actingagainst the under side of the bearing, rotation of the said screwadjusting the said bearing 9 vertically to compensate for any wearbetween it and the journal of the lower front roll Ct, resting upon it.This provision for adj usting the bearing g enables the peripheries ofthe rolls to be kept at the same level entirely across the frame, tothus insure uniformity in results.

To prevent end or longitudinal movement of the bearing g, I provide itwith a projection g, which enters a notch 4 (see Fig. 2,) in an uprightor web m, and to enable the journal of the lower front roll to always bemaintained centrally with relation to the adjustable bearing g, I haveconcaved or beveled inwardly from its edges the upper side of the saidbearing, as best represented at g in Fig. l.

I do not broadly claim an adjustable bearing, but prior to my inventionI am not aware that a front roll in a spinning or drawing frame has everhad a vertically-adjustable bearing.

I claim 1. The roller-stand, the middle and back rolls, and the frontrolls, combined with separate bearings for the lower front roll, gearingto drive the said rolls, and adjusting devices to Vertically adjust thebearings of the front roll, to operate substantially as described.

2. A roller-stand and the lower front roll having journals, combinedwith verticallyadj ustc ble bearings for the said journals, the saidbearings having concaved surfaces to receive the said journals, andadjusting devices for the said bearings, substantially as described.

3. The roller-stand having the upright or Web m, and the bearings forthe lower front roll, the said upright and bearing being connected by aprojection on one entering a slot on the other, as described, combinedwith an adjusting device for vertically adjusting the said bearing, tooperate substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

BENJAMIN L. BAILEY.

Witnesses:

ARTHUR A. DEAN, BENJAMIN A. BAILEY.

